Roybon
Tap water in Roybon is medium risk. Generally fine, but a few tests failed this year.
Is it safe?
Cc Bièvre Isère
Medium risk
Generally fine, but a few tests failed this year
100% of bacterial tests passed and 94.6% of chemical tests passed, from 37 samples.
Supplied by Cc Bièvre Isère.
Hardness: Moderate (15.8 °f).
Source
French Ministry of Health drinking water checks (data.gouv.fr).
Period covered: January to September 2026.
Covers communes of roughly 1,000 people or more. Ratings weigh how many bacterial and chemical tests passed. A single failed test does not by itself lower a rating. Hardness is the median measured this year, in French degrees.
Common questions
Can I drink the tap water in Roybon, Auvergne-Rhône-Alpes?
Tap water in Roybon is medium risk. Generally fine, but a few tests failed this year.
Where do these ratings come from?
French Ministry of Health drinking water checks (data.gouv.fr). Period covered: January to September 2026.